Homosapians started to use tools.
Answer:
Even after an infection is over, your immune system continues to make antibodies. Once you test positive for the bacteria, your blood will continue to test positive for months or years even after the bacteria are no longer present.
Explanation:
using brain
1. True: asexual allows for rapid reproduction
2. False: increases genetic variation in a population
3. False: sexual reproduction creates more genetic variation
4. True: during meiosis, the genes can combine differently. See punnet squares and genetics (Mendel's pea study)
Answer:
Microtubule fiber
Explanation:
Microtubules play a huge role in movement within a cell. They form the spindle fibers that manipulate and separate chromosomes during the mitosis phase of the cell cycle. Examples of microtubule fibers that assist in cell division include polar fibers and kinetochore fibers.
The primary function of a flagellum is that of locomotion, but it also often functions as a sensory organelle, being sensitive to chemicals and temperatures outside the cell. The similar structure in the archaea functions in the same way but is structurally different and has been termed the archaellum.
The Cytoskeleton is a dynamic three-dimensional structure that fills the cytoplasm. This structure acts as both muscle and skeleton, for movement and stability. The long fibers of the cytoskeleton are polymers of subunits.
The opposite term is filament fibre, which is fibre that comes in continuous to near continuous lengths for use. Silk, taken from the cocoon of a silkworm, is a filament. Synthetic fibres can also be manufactured as filament. If the filament is then cut into discrete lengths, it becomes staple fibre.
Hope this helps : D
